LOS ANGELES — “Star Trek: Into Darkness” has warped its way to a $70.6 million domestic launch from Friday to Sunday, though it’s debut was lower than expectations.

The latest voyage of the starship Enterprise fell short of its predecessor, 2009’s “Star Trek,” which opened with $75.2 million.

The “Star Trek” sequel bumped “Iron Man 3” down to second place after two weekends on top. Robert Downey Jr.’s superhero saga took in $35.2 million domestically to lift its receipts to $337.1 million. Overseas, “Iron Man 3” added $40.2 million, raising its international total to $736.2 million and its worldwide tally to nearly $1.1 billion.

“The Great Gatsby” pulled in $42.1 million overseas, coming in a bit ahead of both “Iron Man 3” and “Into Darkness.” Domestically, “Gatsby” held up well at No. 3 with $23.4 million, lifting its total to $90.2 million.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Hollywood.com.

1. “Star Trek: Into Darkness,” $70.6 million

2. “Iron Man 3,” $35.2 million

3. “The Great Gatsby,” $23.4 million

4. “Pain & Gain,” $3.1 million.

5. “The Croods,” $2.75 million.

6. “42,” $2.73 million.

7. “Oblivion,” $2.2 million.

8. “Mud,” $2.16 million.

9. “Peeples,” $2.15 million.

10. “The Big Wedding,” $1.1 million.